Propagation Tutorial

A very interesting 'Propagation Tutorial' on the web written by Mike Willis January 10th 2005.

It has specific attenuation for atmospheric Oxygen and Water vapour up to 350GHz.

The papers also cover:
1 Propagation in Free Space
2 Absorption by Atmospheric Gases
3 Diffraction over Terrain
4 Refraction and Ducting
5 Reflections
6 Troposcatter
7 Rainscatter

http://www.mike-willis.com/Tutorial/gases.htm

Interesting to read under 'Propagation in free space' is that RF energy carried by photons do eventually decay and are reduced by half over a 6.5 Billion years.

Well worth reading and retaining for reference.

Regards
Steve ZL1TPH

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